Cutting-machine.



No. 679.800.- Patented 'Aug. 6, 190i.

F. H. TURNER.

CUTTING MACHINE.

(Apglicntion filed July 9, 1900.)

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. No. 679,800. Patented Aug. 6, l90l.

r. u. TURNER. CUTTlNG IACHIIL (Application mod Jul 9, 1900.) (No Model.) 2 sheets-sheet 2.

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UNITED STATES- PATENT OFFICE.

FRANK I-I. TURNER, OF HARTFORD, CQNNEOTICUTQ GUTTlNG-MACHINE.

sPEo'IFIcA'rIoN forming part of Letters Patent No; 679,800, dated August 6, 1901.

' Application filed July 9, 1900. Serial No. 22,923- (No model.)

T0 at whom, it may concern/.-

Be it known that I, FRANK H. TURNER, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, (having a post-office address at 738 Park street, Hartford, Connecticut,) have invented certain new and useful Improvements in Cutting-Machines, of which the following, when taken in connection with the accompanying drawings, is a description whereby any one skilled in the art may make and use the same.

While my improved machine may come under the general class of devices known as cutting-machines and maybe used in connection with many sorts of materials, it is more especially adapted to be used in cutting or trimminga materialwhich has been formed into a continuous strip and which it is desired to reduce in width to a fixed gage, having its edges regularly and cleanly cut and always in exact parallel relation: A machine of this class is found to be most desirable in cutting rubber or a like elastic material, and, in fact, the device illustrated in the accompanying drawings is designed more especially to be used on such a material.

In the manufacture of rubber, or rather of rubber articles, such as tubing, great difficulty has been experienced in cutting the two edges of the web of rubber so that as the abutting edges are brought together to form a tube there will be no unevenness between them. The rubber is first prepared and formed into a continuous web-like strip by suitable calendering-presses and while in its green condition is wound into a roll on a lining of cloth properly prepared to keep it from sticking together.

The object of my invention is to produce a machine which will automatically trim a continuous web of rubber to a predetermined width with its edges squarely and cleanly out, "leaving them always parallel. It also contemplates means for applying the cement or adhesive to the edges of the web after it has been cut to the required width, and this automatically.

Referring to the drawings, Figure 1 is a side view of my improved cutting-machine. Fig. 2 is a plan view of the same. Fig. 3 is a cross-sectional view through the cutters on an enlarged scale. Fig. 4 is a view, on an enlarged scale, of the gumming mechanism. Fig. 5 is a detail View of the box and appurtenant parts used for applying soapstone to the material. Fig. 6 is a detail view, on an enlarged scale, of the idler and guide-roll hereinafter described.

In the accompanying drawings the numeral 1 denotes a frame carrying the several mechanisms for holding, (lusting, cutting,

'andgumming the material operated upon and the mechanism for rewinding the web of cloth or like material with which the rubber is wound into a roll before being placed on the frame. This frame 1 is mounted upon a suitable base 2. At one end of the frame 1 a main driving-shaft 3 is mounted in suitable bearings and is adapted to be driven by a belt 4, connected with any suitable source of power, and which serves not only as a driving-belt, but also as a carrier to transfer the strip of newly-cut rubber to any point where it is desired to subsequently use it. The shaft 3 bears at one end a main driving-gear 5, which operates the trains of gears which drive the several mechanisms hereinafter described. The gear 5 is loosely mounted on the shaft 3 and has on its hub one member of the clutch mechanism 6, which cooperates with a second clutch member 7, splined to the shaft and adapted to be moved into and out of engagement with the clutch member 6 by an operating-lever 8. This clutch mechanism forms a convenient means of starting and stopping the several mechanisms of the machine and is quite essential, as very often in the operation of the device, the material being somewhat sticky, it is necessary to stop the machine to adjust the web of cloth and the rubber, which have adhered to each other. The gear 5 drives the cutters 9 through gears 10, 11, and 12. At the opposite end of the cutter-shaft 13 is located a grooved pulley 14, which,through the medium of a belt 15,drives the winding-arbor 16, which is adapted to rewind the web of cloth upon which the rubber is introduced to the machine in a roll, as shown at 17.

The roll of cloth containing the rubber-is placed in a bearing 18, as shown at the right of Fig. 1, and is then led over a roll 19 and under a roll 20 to the powdering-roll 21, where venience the rolls 20, 23, and 24 are mounted" in a swinging frame 26,adapted to be turned; The parts last named may be swung upward, asshownindotted outline in Fig. 1 of the drawings, to facilitate" The by a hand-lever- 27;

starting the webs between the rolls. rolls24 are driven at a slightly'greater speed than the roll 23, sothatth'e'rubbe-r is' stretched a little, andthus withdrawn-from the web of cloth, to which it has been closely united. The belt-drive which operates the" winding-spindle 16 allows of's'ome slip and automatically takes care of the web ofcloth"? The roll 25, which is mounted in'the end of the swinging frame 26, is adjustable both ver tically and horizontally, as shown in'Fig.- 6, and by this adjustment the roll -may'be* al ways placed insucha relation to the-M1124 as to guide the'strip of rubber to the cutters;

The cutters 9 are mounted on the'shatt'l3 and positively driven by gearing, Whichare' adjustable transversely toth'ei axisof; the

' shaftl3, as shown in Fig. Bel'ow'thec'ut ters' Qand' bearing against theirinner faces are a -pair of cutting-disks 28, splinedto the shaft 29 "and having'a movement lengthwise" thereof; These cutting-disks are held-again st the inner-facesof the cutters -9' withan'yl de sireddegree ot' pressureby'weights30, each dependentfrom the angle-lever 31, pivoted;

as at-32, and bearing at its outer endayoke'j 33, having pins cooperating with a groove 34',-

formed in the hub ofthe cuttingdisli 28. To secure thejangularadjustmentof'the cuttingdisks 9,-thecoupling,35 is arran'gedconnect ing the two halves of the shaft"13 by pivotscrews 36, so that the two halves, withtheir cutting-disks 9,1nay be thrown-slightly from' axial alinement,-thus bringingthe edges'ofthe cutters into contact with-the edges of the cutter-disks 28 at a slight angle, which'will produce a very desirable shearing out upon I comes wedged between .the cutters" and"- stretches to such an extent that a very 1m: perfectcut is made."

The dusting mechanism referred to above is specially arranged for applying a'coating of soapstone without liability: of producing an excessive coating; The cylinder 21 of the dustingmechanism is mounted'on ashaft 37 This mechanism is an important 'which is journaled in the frame 1, and which shaft bearsya cam 38, adaptedto strike against a lug 39, dependent from a shakerbar 40, which is pivoted to the frame of the machine and connected to the dusting-box 42through the medium of pivoted arm 41. This'shaker-bar 40 imparts a sufiicient movement to the dusting-box 42 to agitate the soapstone and keep it in constant contact with the roll 21, which extends only at its lower side into the box 42, and the surface of the roll is preferably'covered with felt or like material. At the bottom of the box 42 .and in position to be submerged by the soapstone at scraper 43 is arranged in contact with the surface of the roll 21 and is resiliiently 'held there by spring'44. This bar 43 'rubs the soapstone well into the surface'of theroll and atthe 'sam'e'time' prevents an ex cessiveaccumulationonit:

In Fig. 4 is" illustrated a gumming mech :a'nis'm-for applying adhesive to the edge'sof the strip'of rubber ormaterial 1 after it has mechanism above described, it"may beused to good advantage applied directly to"the comprises; essentially, apairofbeveled disks 45'46, mounted atan angle to eachiothe'r'and having faces 47 48, which bear against the edges of the material, asshown' in' dotted outline:

orti'o'i1gh49'. They are'adapted'to be driven by'b'evele'd gearseO, mounted'on the shaft 511,- and" driven as by a belt and' pulley. iThey' are adj ustab'letoward and from each Bother and may be set to any: gage and then clamped, as by the set-scr'e'ws52;

I claim as my improvement 1. In combination in a'm'ac'hine' ofthe class (specified, a driving and carrying belt, a'main" driving-wheel, means" for supporting and guiding the material to be cut tothe cutter, means for removing the lining said' means being frictionally driven,'and one or more cutters adapte'd to out said material to any tdesired width.

ifor c'onveyingone of saidweb's' to a windingspindle and means. for guiding the first= :named webt0 the cutters, and cutters for cutting the web.

3 In'combination in a' machine "including :aicutting and winding mechanism, positivelydriven feed mechanism for the 'materialtobe operated upon, and frictionally-drivenwinding mechanism for winding the carrying-web,- and" a belt for driving the driving-shaft'adapted to receive and'convey the 'cut' material.

4. In combination" in a machine for auto The lower edges of' these rolls are immersed inthe'adhesivecontained in a'box 2; In-combination, in a machine adapted to cut a'web'of material which isintroduced' to the machine in contact with a secondw'eb' of material, aswinging frame bearing rollers '9 been'fcutto gage; While this mechanism 1s not essential so far'as'thecutting-machine is concerned and may be used Without the ICO matically cutting a strip of material, a pair of power-driven cutters, a pair of cuttingdisks adjustable with relation to the cutters and adapted to be held in contact therewith with a forced yielding pressure.

5. In combination, in a machine for cutting a strip of material, a pair of rotary cutters standing in planes not truly parallel, parallel rotary cutter disks mounted in operative relation to said cutters and held in yielding engagement therewith, gearing directly connecting the shafts of the cuttingdisks, which shafts stand in a single plane, and means for driving them at corresponding speeds.

6. In combination, a pair of rotary cutters mounted upon a driving-shaft comprising two sections arranged with their axes disposed at an angle to each other, cutting-disks rotarily mounted in operative relation to the cutters and adapted to bear yieldingly against them to produce a shearing cut. I

7. In combination, a pair of rotary cutters mounted upon a driving-axle, said axle being divided between the cutters, means connecting the two sections of the driving-shaft forming a coupling by which the cutters may be arranged at an angle to each other, and a pair of cutting-disks resiliently held against the cutters and cooperating with them to produce a shearing cut.

8. In combination in a machine of the class specified, the material to be cut and its lining-web suitably supported, mechanism for dusting the material to be cut and feeding it to the cutters, means for separating the liningweb therefrom and winding it up, and an adjustable guide-roll for guiding the material to be cut as it is separated from its lining, said feeding and winding mechanism traveling at different rates of speed.

9. In a machine for cutting strips of elastic material comprising a dusting, a feeding, and a cutting mechanism, rotary gummers whose edges apply an adhesive to the edges of the material after it has been out and While it is in motion, said gummers being set oblique to the plane of the strip and having a rate of movement substantially equal to the rate of movement of the material, and means for ad-' justin g said gummers to and from each other.-

10. In a machine for cutting strips of material comprising feeding mechanism and a pair of rotary cutters operating with a shear ing out upon the moving material, means for applying an adhesive to the newly-cut edges of the material, said means including a pair of obliquely disposed rotary disks having their edges cut to conform to the edges of the material which has been cut, and means for adjusting said disks obliquely to their axes but in a line parallel with the plane of said material.

FRANK H. TURNER. Witnesses:

EDWARD M. YEOMANS, LUITGARD MORBA. 

